From 4790675c343b1cf4b8ec9c43e819cd96f31e158c Mon Sep 17 00:00:00 2001 From: David Sommerseth Date: Thu, 8 May 2014 15:00:07 +0200 Subject: Check that we get a proper NETLINK connection Signed-off-by: David Sommerseth --- python-ethtool/netlink.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/python-ethtool/netlink.c b/python-ethtool/netlink.c index d311405..bb8534b 100644 --- a/python-ethtool/netlink.c +++ b/python-ethtool/netlink.c @@ -58,7 +58,9 @@ int open_netlink(PyEtherInfo *ethi) /* No earlier connections exists, establish a new one */ nlconnection = nl_socket_alloc(); if( nlconnection != NULL ) { - nl_connect(nlconnection, NETLINK_ROUTE); + if( nl_connect(nlconnection, NETLINK_ROUTE) < 0 ) { + return 0; + } /* Force O_CLOEXEC flag on the NETLINK socket */ if( fcntl(nl_socket_get_fd(nlconnection), F_SETFD, FD_CLOEXEC) == -1 ) { fprintf(stderr, -- cgit